Filament-mounting machine.



W. n. BURRoWs. FILAMENT MOUNTING MACHINE. APPLIOATION FILED DI?. 29, 1906.

989,549., Patented Apr. 11,1911.

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(WWL o l W. R. BURROWS.

PILAMENT MOUNTING MACHINE.

APPLICATION FILED DB0. 29, 1906.

989,549. Patented Apr. 11, 1911.

4 SHEETS-SHEET 2.

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W. 11. BURROWS. 9 PILAMENT MOUNTING MACHINE. 4 APPLICATION EILEDDIEO4 29, 1908. i v 989,549, Patented Apr. 11, 1911.

4 SHEETS-SHEET 3.

N Il 1 Nl 1 1 m11, )hl M 1| Inventor: William Rurrows.

W. R. BURRO'WS. P ILAMENT MOUNTING MACHINE. APPLICATION FILED DEU. 29. 1906.

Patented Apr. 11, 1911.

4 SHEETS-SHEET 4.

Inventor' William RBurrovvs STATES PATENT orme.

WILLIAM n. Bunnows, or NEWARK, N'Ew JERSEY, Assicnon 'ro GENERAL ELECTRIC COMPANY, A CORPORATION 0F NEW YORK.

has for its object the provisionV of means whereby the iilaments may be securedvto leading-iny wires by means of automatic de- `vices in a simple and eiicient manner` In the securing of incandescent lamp filalnents to leading-in Wires Vit has been the practice to mount the stem carrying the leading-in Wires and'to bring the filament 4 lby hand in proper relation so that the ends of the filament may be brought in contact with the leading-in wires and the graphitic ,paste applied by hand.

- In carrying out my invention, I provide a machine in which the stems and filaments are mounted in proper relation on a moving carrier, and arrangements made whereby the paste is automatically applied. Provision is also made for hardening of the paste and for stamping the rating on the stem. I also provide means for cutting oif anchor wire and shaping the leading-in wires to the! proper width for mounting. My invention therefore consists of a machine for mounting filaments in which the several steps 'are carried on automatically and the Vseveral charf acteristic structural features will be definitely set forth in the claims.

In the drawings in which I have shown one embodiment of my invention, Figure l is a plan view of the machine; Fig. 2 1s an elevation 'of the same 'with certain arts brokenaway; Fig. 3 is a side View o the same with parts broken away; Fig. 4 is a detail of the mechanism for the print'-4 ing roll; 5 is a side elevation of the paste carrying .mechanismI as a whole; Fig. 6 is a detail plan-view of paste pot; Fig. 7

is an elevation of the device used for trimming anchor Y wire andshaping leading-in wires; Fig. 8 is a detailof shaping arrangement; Fig. 9 is a plan view of same; Fig. 10 is an enlarged view showing filament clamping and stem holding mechanism in position.

to be loaded; Fig; 11 is a detail showing stem and vfilament clamped in position; Fig.y

Specication of Letters Patent. i Application iiled December 29, 1906. Serial No. 350,016.

Patented Apr. 11, 1911.

12 shows the 'general arrangement of operi ating levers in plan view; Fig. 13 isl a detail of main clutchmechanism; and' Fig. 14 is a detail of the .clutch for intermittently rotating the earner.- Y

Referring to the drawings in which like reference numerals refer to like parts, 10 lis a table or platform -upon which the Working parts are mounted, consisting ofa carrier which is intermittently rotated by means of a continuously movingdrive pulley and intermediate clutches controlled bythe opmounted upon a vertical shaft and has a number of arms, in this case eight, at the outer extremity of which are mounted the devices for clampingthe stems land filaments in proper relative position. This h'ead is rotated by means of a drive pulley12 which is constantly rotating and'which is clutched to the shaft 13 by the operator pressing the button 14. This button actuates the lever 15 pivoted at 16, which' in turn operates the le- Ver 17 pivoted at 18, to depress the end carrying the cam-shaped portion 19 which actu--` ,eratoxa The rotating head or carrier 11 is Y tes the clutch. The particular constructionv` of this clutch forms no part of my invem tion.

For purposes of illustration, I have shown `z a clutch in which the pins 20 .are forced inward to lock member 21 to member 22, by means of a spring 23, so that when the operator presses the button 14, the cam 19 will be' lowered and allow the pins 20'to'e'ngage the teeth 21 and clutch the two members together, thereby driving the shaft 13.

Secured to shaft 13 is a gear 24 meshing with a 'gear 25 loosely mounted on shaft 26. Between these two gears is a band clutch which is so arranged that at every revolution of the gear 24 a single revolution is lgiven to shaft 26.-y The details of this clutch are shown in Fig. 14, although there lare other forms of clutchesthat may be substituted 'without departing fromthe spirit of my invention. `Piyotally mounted at 27 to a l bracket 28 secured to the platform is a lever 29, having a roller 30 adapted .to be engaged by a pin 31 on gear 24. The free end of this leverengages a projecting finger on block 32 whichv is interposed between the ends of a st'ra- ,brake 33. This block 32 may be Ysomew at wedge-shaped and is. soarranged that normally it allows the ends of the band brake to come together so as to clutch the sheave 34. A spring and a bolt 36 force vthe ends of the brake together until the ment with the lever 29 to the position shown.

in Fig. 14. The ends of the brake are thus spread and the brake released.

It will be seen that when the gear 24 rotates, it drives the gear 25 and sheave34. Whenthe pin 31 rotating with the gear 24 reaches the roller on lever 29, the latter is raised, allowing the ends of the brake to come together in response to the tension of spring 35 to grip the sheave. The brake strap is thereupon carried around by the sheaves 34 and rotates the shaft 26 by means of an arm 37, keyed to the shaft and having its outer end bearing on the brake strap.`

Shaft 26 drives shaft 38 by means of beveled gears 39, and on the lower end of the shaft 38 is an arm 40, carrying a pin 41 adapted to engage slots 42 in the rotating head. In this manner, bythe pressure of the button 14 shafts 13 and 26, each make a complete revolution, the latter causing the rotating head to move one step, the distance between two successive notches, in this case one-eighth of a revolution.

. Mounted on the outer end of each of the arms of the head is a support or clamping device for holding the stem and the filament in pro er relation lto each other, the details of sai device being shown in Figs; 10 and 11. In the specific form of device shown in the drawings there is mounted o n the end of each arm a stem support comprising a base 43 provided with spring clips 43a for holding the stem with the leading-in wires in position to register with the ends of the lament, the stem support being mounted/in a yoke 43b by means of two screws mounted in opposite arms of the yoke in alinement with each other. The filament is held with its ends in positionto overlap and form a joint with the leading-in wires by means of any suitable filament support such as that shown in the drawings, in which the table 43 carries a series of guides 44 and grooves -44 adapted to receive the ends of the filament. The -form 0f filament shown in Fig. 11 comprises two loops which are placed in the clamping device one at a time, the two in ner 'endsbeing lapped and attached to the anchor wire 46 at 45 and the remaining two ends being connected to the leading-in wires. The articular arrangement of the clips for holding the filament willl depend upon the type of filamentto be mounted, and may, of course, be varied at will. For holding the filaments in the clips, I provide a palr of clamps 47 and 48pivoted at 49, to be movable independently of each other, the former being offset so as to bring its holding face in line with clamp 48. These clamps are provided with rubber tips 50 for causing a good frictional engagement with the filament without injuring the same, The clamps are normally pressed down on to the table by means 'of springs 51 and 52, and each one may be raised at `will by means of a treadle arrangement in control of the operator. rIhe operation of these two treadle mechanisms for the two clamps is substantially the same, and the details of their construction are shown in Figs. 2, 3, 10 and 12. This mechanism comprises treadles 53 and 54 pivoted respectively at' 53 and 54 and having their free ends pivoted to the vertical rods 56, 56. These two rods operate the bars AI57, 57 pivoted at 58. The treadle rod 56 is pivoted directly to the lbar 57 so that the treadle will come directly under the bar, while the rod 56 moves the bar 57 by means of the link 59 which, as shown in Fig. 12, is pivoted at 59 and has its middle point connected to the rod 56, so that the treadle 53 is located to one side of the treadle 54. The treadle is soarranged that it will be raised by spring 60, but when forced downward it will be locked in normal position by a spring-pressed latch 60. The bars 57 57 are connected with the bars 61 61 pivoted at 62 lo'y links 63 63', and the other ends of these bars are slotted for engagement with pins 64' on avertial reciprocating bar 64. The upper end of this bar carries a projection 65 which engages a lever of the filament clamping mechanlsm pivoted at 65', the outer end of whichis connected by a link`66 to the outer'end of the clamps. The treadles are forced downward to normal position by means of a spring pressed lever 67 pivoted at 67 and provided with an anti-friction roller 68v which is engaged by the cam 68 onlthe shaft 13. When the cam 68 engages the roller 68, the lever 67 is forced downward, carrying Vwith ita Vpush rod 69 to which'thelever 67 is pivotally connected b v the pivot 69. The upper end of pushrod 69 is steadied by a guide 70 and the push rod carries a collar 7 0 which engages the bars 57, .57', forcing them downward until the treadles connected to the bars are caught by the latch 60. A dash pot 71 is connected to the bars 57 and 57 and does no't interfere with the downward movement of the bars,

butis arranged to retard the upward movement of the bars and treadles after the treadles have been released from the latch 60.

The arrangement for applyingjthe paste is shown in Figs. 5 and 6, and consists of a forked brush 72 arranged tov reciprocate in the receptacle 72', so as 4.to intermittently embrace the joints of the wire and the filament. In this case thebrush is provided with three slots, oneA for each joint,'and provision is made for wiping the paste from the sides of the brush, and leaving it only in the slots. This arrangement consists of wipers 73 pivoted at 73 and forced apart by ifmeans of a'sprinfr Y,the wipers osano 74. The outer eiids ofV normalA y come together anda perforation 74' is provided at the junction While a rod 75 carried by the operating lever 75 has ataper portion76 which is forced into the hole and expands the parts so as to force the wipers in contact Vwith'the brush. The brush 7 2'is operated by having a pin 76 engaging a slot` m the operatin lever 75', which lever is pivoted at 77 an carries at its free end a roller 77 for engagement with the cams 78, 78, 79, each cam having two surfaces 80 and 81 between which the roller l 4to operate the clutch.

. and down to apply the paste three times. In

case this is not suiiicient the lever 7 5 is provided with a handle'by which the operator may again apply the brush. In order to` prevent the button 14 from beingpressed to operate the machine while the brush 72 is in a' raised position, I provide a stop rod `82 sliding through a guide 82 and operated by meansv of a' bell-crank lever 83 'connected thereto by a link 83. The bell-crank leverI is operated by a link 84 pivoted at 84 'to the lever 75. When the brush 72 is up, the rod 82 will be thrust outward under the end of the lever 17 so as to prevent its lowering For the urpose of stamping thecharacters upon t e stem, such for instance as the rating of the'lamp, I provide the arrangement shown in Figs. 1, 2, 3 and 4. This consists of a head 85 carrying type 85, an ayd-n justable spring 86 bein provided to cushion the blow of the type. flgivoted to ana-rm on ,.4'0 the head, is a bent lever 87 pivoted at 87',

having at its'free end a roller 88 for engage- Y ment with a cam 88 on shaft 13. Thetype will thus be forced downward onto the stem once in each revolution of `the shaft 13. As a means for inking the type, I-provide a ro-y tatably mounted inking pad 89, having notches on its periphery. The inking roller 90 is mounted on a bar to reciprocate across the pad, the rodsliding through a guide 91 and engaging at its outer end with a rod 92 which 1s pivoted at 93 and carries a roll 94 for engagement with a cam 95, a spring 96 being provided to keep the'roll against the cam surface. For' rotating the pad so as to bring the roll over the fresh inking surface, I provide a bent lever 97; pivoted at 98, having an upwardly projecting curved portion l99 engaglng witha in 100 on the lever 87.

to be rotated a step.

VFor spacing the ends of the leading-in wires to correspond to the spacing of the filament ends and for cutting Athe anchor wire to the proper length, I provide the mechanism shown in Figs. 7, 8 and 9. This consists of an angular lever 102 pivoted at 103 to an arm fixedly mounted on the base and-carrying at its extremity a knife. edge 104.. The opposite end'of the lever is connected with a pivoted finger lever 105 pivoted at 106 by a link 107. A V-shaped guide 108 is mounted adjacent to the knife edge, and has .on each side a pair of lingers 109 adapted to be pressed together to straighten and to properly space the wires.

These fingers are pivoted at 110 and forced apart by springs 111, while the clon ated rods 112 are inserted between the ends of each pair and adapted to spread the ngers against the tension of the springs 111 and thereby force the opposite ends together. The rods 112 are turned by means of links 113 connected with the ends of the rods and pivoted to a rod 114 connected by means of a link 115 with a projection on the finger lever105. It will be seen that when the lever 105 is depressed, the knife edge 104 will descend while at the same time the link 115 'will be forced longitudinally, causing the rotation of the links 113 and the closing of the fingers 109. When the ressure is removed fromthe lever the kni e is raised by means ,of the spring 116.

The operationof the machine is as follows: The operator is stationed at the side of the machine near .the pushbotton 14 and opposite the wire trimmer. She irst takes a stem and inserting'it in the V-shaped slot 117, lays the anchor wire 46 in the slot 108 forcing the end of the stem up against the end of the latter and placing the leading-in wires between the fingers 109. Lever .105 is then pressed, cutting the anchor wire to a properlength and straightening the leadingin wires. The operator then takes a section of the filament and placing the ends in the grooves 44 and-guides 44 adjusts them until the ends are in position to overlap the Wires inthe stem, the grooves and guides tending to give them their proper relation. Treadle 54 is now released .by pushing the 'latch 60' out of engagement therewith and clamp 48 1s allowed to drop slowly, movement being regulated by dash-pot 71. Theotlier section of filament is now placed and held by clamp 47 which is operated in the same manlil ends of the lament.

After the stem is in position in the stem support, it is turned back into the horizontal plane to bring the leading-in wires into position to overlap the ends of. the ilament andthereby form joints between the leading-in wires and the filament. The button 14 is then pressed, this st-arts machine and pedals are pushed down by shoulder 70 'and locked in their normal position, the table is given one-eighth turn bringing another stem and lament device in position to be loaded and stopping the one just lled opposite the asting device. In this position, the brush g2 is forced upward so that the joints between the wire and the ilament enter the slots in the brush,

the operation being performed three times,

and if necessary repeated manually by the operator. AIn the meantime, the operator clamps another stem and filament in place and presses the button carrying the stem with the paste applied around, se as to give the paste an opportunity to dry. The drying portion may be hastened by means of gas burnersstation'ed at points in the path of the carrier, as for instance at 119 and 118. Vhen the stem has becomev quite dry, it arrives opposite the printing mechanism where the type descends upon the stem and prints the rating or other legend thereon, and when it finally again comes in front of the operator, she removes the same and inserts new parts as above described.

It will be of course understood that the particular construction and arrangement of parts herein shown may be greatly varied,

and many changes will suggest themselves to those skilled in the art, all of which come within the spirit of my invention, in so far as they fall within the scope of the claims annexed-hereto. Y

What I claim as new and desire to secure by Letters Patent of the United States, is-

1. A machine for mounting lamp ilaments, comprising a ixed support for a stem, a support arranged to hol-d the ends of a filament in contact with the wires in said stem, and means for automatically forcing an adhesive into place around the engaging ends of the wires and filament-s.

2. A machine for mounting lamp .filaments, comprising a xed support for a stem,

a clamping device arranged to hold the ends of a filament in contact with the wires in said stem, means for automatically applying adhesive to the joints, and means for automatically printing a character on said stem.

3. In a machine for mounting; lamp filaments, the combination of a traveling carrier, a plurality ot clamping devices mounted thereon, each comprlsing a clamp for a stem, and means for holding the ends of a filament in contact with the wiresin said stem, a'member having a recess for adhesive and mounted to move relatively to said clamping devicevto bring the contacting ends of the wires and ilaments 'into said recess, and means for automatically actuating said member to apply adhesive to the joints'in succession.

4. In a machine for mounting lamp lilaments, the combination of a traveling carrier, a plurality of clamping devices mountv ed thereon, each comprising a pair of oppo-,

sitely arranged supports for holding the ends of the filaments in contact with leading-in wires in a stem and a device mounted adjacent to said carrier arranged to automatically operate between the supports, to apply adhesive to the joints successively.

5. Inca machine for mounting lamp laments, the combinationl of a traveling carrier, a plurality of clamping devices mount- .ed thereon, each comprising a fixed support for a stem, a fixed support for a filament adjacent thereto, and a device mounted in the path of said carrier arranged to reciprocate between the supports, to apply adhesive to the joints successively.

6. A machine for securing incandescent lamp filaments to leading-in wires comprising a clamp for the stem, a fixed support adjacent said clamp having grooves opposite the wires of the stem, a member engaglng the support to clamp the lament in said grooves with both ends in engagement with the wires, and means for automatically applying adhesive to the joints. l

7. In 'a machine for mounting lamp filaments, the combination with devices for clamping a lamp filament anda leading-in wire in contact, of means for automatically applying adhesive to the joints, comprising a receptacle for the adhesive, a brush arranged to enter the same, and means for removing the excess adhesive from said brush.

8. In a machine for mounting lamp filaments, the combination with devices for clamping a lamp filament anda leading-in wire in contact, of means for automatically applying-adhesive -tothe joints, com rising a receptacle for the adhesive, "a forke brush arranged to enter the same, and means tor automatically removing the excess adhesive from the outside surface of said brush.

9. In 'a machine for mounting lamp filaments, the` combination with devices for clamping a lamp filament and a leading-1n wire in contact, of means for automatically applying adhesive to the joints,-"com rising a receptacle for the adhesive, a `forlge brush arranged to be automatically reclprocated in and out of the receptacle, and a wiper arranged to automatically wipe the outside lio surface thereof, to remove the excess adheed thereon for holding a lamp filament and forming joints with the ends' o f the filament.

of a brush having open ended slots therein,

-and means forwmovingJ said? supports and said brush rclatlvely to each d.other to bring said joints into and out of the slots in said brush. 'l

12. 'In af filament mounting machine, the

combination with supports for holding a' filament and a stem with the stem wires forming joints with the ends of the filament, of a brush for applying cement to said joints, a reservoir for cement and operatin means for said brush arranged to move sai brush out of ,said reservoir into operative relation to said joints and to return said brush into said reservoir.

13. In a filament mounting machine,'the combination with supports for holding a filament anda stemwith the stem wires forme ing joints with theV ends of the filament, of

a slotted brush for applying cement to said v joints between the stem wires and the filament, a reservoir for cement mounted between said supports and operating means for said brush arranged to normallymaintain the brush below the level of the lcement in said reservoir and to movel said brush into operative relation to said joints.

14. In a filament mounting machine, the combination with supports for holding a filament and a stem with the stem wires forming joints with the ends of the. filament, of a flat brush having longitudinal slots mounted to move transversely of the stem Wires and filament to bring -said joints intosaid' slots, and wiping fingers arranged to engage the flat sides of said b'rush.

15. Inua filament mounting machine,4 the.

combination with supports forholding a filament and a stem with the stem wires forming joints with the ends of the filament, of 'a fiat brush having longitudinal slotsmounted to move transversely of thestem wires and filament to bring said joints into said slots, wiping fingers mounted to engagewith the fiat sides o said brush, and o erating means for positively moving saidngers into engagement with said brush. j Y

16. In a filament mounting machine, the combination with supports for holdinga filament and a stem with the stem wires forming joints with the ends of the filament, of a slotted brush for applying cement to the joints between the stem wires and filament., wiping fingers mounted to engage said brush on opposite sides, and common operating means for raising said brush and simultaneously moving said fingers into operative relation to the brush. j

17'.v In a filamentmounting machine, the combination with supportsfor holding a filament and a-stem with the stem wires forming joints with the-ends ofl the filament, aA

combination 'with a movable carrier, a stem" support mounted on said carrier, and aA filament support comprising relatively movable clamping members mounted on said carrier, of an abutment for cooperating with one of said clamping members in a predetermined position .of said carrier, said abutment being mountedto move. into and out ofthe path of movement 'of said clamping member, iand manually controlled means for moving said abutment.

19. Ina filament' mounting machine, the combination with a movable carrier, a stem support mounted on said carrier, and a filamentsupport comprising relatively movable clamping members mounted on sald carrier, of a cam mounted to engage and actuate one of said clamping members to release'ghe fi'lament, and means for moving said cam at will out of operative relation to said clamping member.

20. In a filament mounting machine, ,the combination with a movable carrier, a stem supportmounted'on said carrier, and a filamentsupport comprising relatively movable clamping members, of an abutment mounted to normallyV remain stationaryfin a position to be engaged by one of said .clamping members whereby said clampingl members are actuated to release the filament, and means controlled by the operator for moving said abutmentat will out of operative relation to ;said clampingV members.

21. In' a filament mounting machine, the

combination with a movable carrier, a stem support mounted on said carrier, and a filament support comprising cooperating clamping members mounted on said carr1er,of a cam mounted to enga e one of said clamping members in a pre etermined position of sa'id carrier and thereby release thel filament,'ma1`1 ually Acontrolled means for moving said cam at will out of operative rela, tion to said clampingmembers, and means for automatically restoring said cam to operative position.

22. In a filament mounting machine, the

combination with supports for holding a vfilament and a stem with the leading in wires of the stem adjacent the endsrof the lament, of means them to register with both ends'of the filament. l

23. In a filament mounting machine, the

combination with supports for holding a filament and a stem with the leading in wires of the 'stein adjoining theends of the grippers may be actuated at will,

filament, of grippers mounted to coperate with 'said leading in wires `and space said wires to register with the `ends' of the filament,' and operating means whereby said 24. In a filament mounting machine, the

combination with supports for holding afilament and a stem with the leading inwires of the stem ad'oining the ends of the filament, of movable coperating fingers mounted to engage opposite sidesv of said leading in wiresto straighten andvspace said wires, and manually controlled operating means for bringing said fingers into engagement with said wires.

25. In a filament mounting machine,'the

`combination with supports for holding a or straightening and adjusting the leading in wires to enable.

" tuating ment, and means for actuating each' pail-,of ngers. v j

26. In-a filament mounting machine, the

'combination with supports for holding a' filament and a stern with the leadingin wires of the sten in juxtaposition with the ends of the filament, of a guide for the anchor wire of the stem, grippers mounted on each side of said 'guide to engage4 and space the lead-- ing in wires, and means for simultaneously operating said'grippers.

27. A stem adjuster comprising meansfor holding a stem with the anchor wire and the leading in wires projecting, grippersv mounted to straighten and-space the leading in wires, a cutter for reducing the anchor wire to a predeterminedflength, and operatipglmechanism for simultaneously act e grippers and said cutter.

28. A stern adjuster comprising an anchor wire guide/,of definite length, `spacing devices on each side of said guide for spacing the leading in wires, a cutting blade .mounted to coperatie With one end of said guide to form an anchor wire cutter, and operatmg mechanism for said spacing devices and said cutting blade. l j' In witnessA whereof, I' have hereunto set my hand this 27th day of December, 1906.

WILLIAMR. Bimnows.

Witnesses:

S. N. WHITEHEAD, J. HARRY ELKINS. 

